A cogeneration steam plant of the extraction-condensing steam turbine type has turbine inlet fow of 12.5...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A cogeneration steam plant of the extraction-condensing steam turbine type has turbine inlet fow of 12.5 kg/s at 50 bar and 400°C, extraction for process steam at 220°C and condensation for both turbine and process steam at 40°C. Assuming ideal turbine and pump, no feedwater beating and 50 percent fraction of electricity to total energy output, calculate (a) the cogeneration plant efficiency, (b) the combined efficiency if separate electric and steam generation plants producing the same outputs as above are used. For ail cases take the steam generator efficiency as 85 percent. A cogeneration steam plant of the extraction-condensing steam turbine type has turbine inlet fow of 12.5 kg/s at 50 bar and 400°C, extraction for process steam at 220°C and condensation for both turbine and process steam at 40°C. Assuming ideal turbine and pump, no feedwater beating and 50 percent fraction of electricity to total energy output, calculate (a) the cogeneration plant efficiency, (b) the combined efficiency if separate electric and steam generation plants producing the same outputs as above are used. For ail cases take the steam generator efficiency as 85 percent.
Expert Answer:
Related Book For
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
Posted Date:
Students also viewed these accounting questions
-
Steam enters the turbine of a cogeneration plant at 4 MPa and 500°C. One-fourth of the steam is extracted from the turbine at 1200-kPa pressure for process heating. The remaining steam continues...
-
A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 350oC and velocity of 15 m/s. The exit is at 100 kPa, x = 1 and very low velocity. Find the specific work and the power produced.
-
A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 350oC and velocity of 15 m/s. The exit is at 100 kPa, x = 1 and very low velocity. Find the specific work and the power produced.
-
The best or alpha project managers spend more time on every process group than other project managers except for which one? A. initiating B. planning C. executing D. monitoring and controlling
-
Use the formula for the standard error of p to explain why a. The standard error is greater when the value of the population proportion p is near 0.5 than when it is near 1. b. The standard error of...
-
Micado Corporation was formed on January 1, 2025. At December 31, 2025, Miko Liu, the president and sole stockholder, decided to prepare a balance sheet, which appeared as follows. Miko willingly...
-
Elite Mobile Homes reported the following in its financial statements for the year ended December 31, 2007 (adapted, in millions): .Determine the following for Elite Mobile Homes during 2007: a....
-
Younger Bus Lines uses the units-of-activity method in depreciating its buses. One bus was purchased on January 1, 2010, at a cost of $168,000. Over its 4-year useful life, the bus is expected to be...
-
For a function of form f(x) = asin(k(x d)) + c, explain what key feature of the graph each variable (a, k, d, c) represents AND how to find it when given a graph. Write a sine function equation with...
-
The links of the chain are made steel that has a working stress of 300 MPa in tension. If the chain is to support the force P = 45 kN, determine the smallest safe diameter d of the links. P
-
(a) Your ancester Haopeng is famous for having studied rabbit and fox populations on an isolated island in the Indian Ocean. They denoted the number of rabbits and foxes on the island in the 12-th...
-
Multiply. (2y+3w)(7y-2w-7) Simplify your answer.
-
1 Given: log47=n. Find log4 7
-
Given Data :- Ap = 1777 mm 2. As 2 = 500 mm A's = 314 mm 2 fpk = 1700 MPa fp 0,1k 1530 MPa fy = 400 MPa Pre tensioned 900x500 mm beam with C60/75 concrete, goox 500 mr Solution :- For C60/75...
-
At a county fair, guests have the option of buying individual tickets for rides at $ 5 per ride or donating $ 1 5 to charity and then paying only $ 2 . 5 0 per ride. How many tickets for rides would...
-
Listed here are costs for a shoe manufacturer. Determine total (a) direct materials costs, (b) direct labor costs, and (c) factory overhead costs. Hint: Some costs are excluded from all three cost...
-
Check newspapers and magazines (need to be from 2022 on) and write about the content of an article/news that calls your attention because of the the connection to our class content and/or one of your...
-
Write the binomial probability in words. Then, use a continuity correction to convert the binomial probability to a normal distribution probability. P(x 110)
-
Refrigerant-134a at 200 kPa and 25oC flows through a refrigeration line. Determine its specific volume.
-
Consider an ideal Stirling cycle using air as the working fluid. Air is at 400 K and 200 kPa at the beginning of the isothermal compression process, and heat is supplied to air from a source at 1800...
-
An adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the condenser level to the evaporator level. R-134a enters the capillary tube as a...
-
You are given the following information about two companies, partly extracted from their most recent statement of financial position and income statement, and partly taken from the financial press....
-
You are given the following information about Swin Gin plc: You are required to calculate the P/E ratio for each year, and comment on how the market appears to have reacted to changes in EPS. Year 1...
-
Assess the usefulness of P/E ratios and suggest how they might be misleading.
Study smarter with the SolutionInn App